Title: Double Opt-In Helper
Author: Rock Lobster Inc.
Published: <strong>Ogwekkuminebiri (Ntenvu) 10, 2021</strong>
Last modified: Ogwomunaana (Muwakanya) 22, 2026

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![](https://s.w.org/plugins/geopattern-icon/doi-helper.svg)

# Double Opt-In Helper

 By [Rock Lobster Inc.](https://profiles.wordpress.org/rocklobsterinc/)

[Download](https://downloads.wordpress.org/plugin/doi-helper.1.1.zip)

 * [Details](https://lug.wordpress.org/plugins/doi-helper/#description)
 * [Reviews](https://lug.wordpress.org/plugins/doi-helper/#reviews)
 *  [Installation](https://lug.wordpress.org/plugins/doi-helper/#installation)
 * [Development](https://lug.wordpress.org/plugins/doi-helper/#developers)

 [Support](https://wordpress.org/support/plugin/doi-helper/)

## Description

Double Opt-In Helper is a WordPress plugin that helps developers implement the double
opt-in process in their plugins.

#### What is double opt-in?

Double opt-in is a procedure used to confirm users’ consent. Today, service providers
are often required to obtain clear consent from users before collecting or using
their personal data, and in some situations, asking the user to tick an “I agree”
checkbox is not sufficient. Double opt-in serves a useful role in such situations.

A typical double opt-in process starts by the service provider sending an email 
message to the user. The message includes a URL link to the provider’s website and
asks the user to click the link if they agree on conditions. Usually, the URL includes
some sort of unique random code that works as a token to confirm the user’s consent.

By doing this, the service provider can confirm that the real user (not a bot or
someone else) has consented, because only the user should be able to access messages
to their email address.

For details on how to use it, see [Double Opt-In Helper](https://contactform7.com/doi-helper/)
on contactform7.com.

## Installation

 1. Upload the entire `doi-helper` folder to the `/wp-content/plugins/` directory.
 2. Activate the plugin through the **Plugins** screen (**Plugins > Installed Plugins**).

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Double Opt-In Helper” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ Rock Lobster Inc. ](https://profiles.wordpress.org/rocklobsterinc/)
 *   [ Takayuki Miyoshi ](https://profiles.wordpress.org/takayukister/)

“Double Opt-In Helper” has been translated into 2 locales. Thank you to [the translators](https://translate.wordpress.org/projects/wp-plugins/doi-helper/contributors)
for their contributions.

[Translate “Double Opt-In Helper” into your language.](https://translate.wordpress.org/projects/wp-plugins/doi-helper)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/doi-helper/), check
out the [SVN repository](https://plugins.svn.wordpress.org/doi-helper/), or subscribe
to the [development log](https://plugins.trac.wordpress.org/log/doi-helper/) by 
[RSS](https://plugins.trac.wordpress.org/log/doi-helper/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.1

 * Bumps up the minimum required WordPress version to 7.1.
 * Bumps up the minimum required PHP version to 8.3.
 * Changes the author name to Rock Lobster Inc. (a Japan-based company that the 
   original author, Takayuki Miyoshi, owns)
 * Improves the post type capabilities definition.

#### 1.0

 * Bumps up the minimum required WordPress version to 6.1.
 * Bumps up the minimum required PHP version to 7.4.

## Meta

 *  Version **1.1**
 *  Last updated **2 wiiki ago**
 *  Active installations **90+**
 *  WordPress version ** 7.1 or higher **
 *  Tested up to **7.1**
 *  PHP version ** 8.3 or higher **
 *  Languages
 * [English (US)](https://wordpress.org/plugins/doi-helper/), [German](https://de.wordpress.org/plugins/doi-helper/),
   ne [Japanese](https://ja.wordpress.org/plugins/doi-helper/).
 *  [Translate into your language](https://translate.wordpress.org/projects/wp-plugins/doi-helper)
 * Tags
 * [consent](https://lug.wordpress.org/plugins/tags/consent/)[Opt-in](https://lug.wordpress.org/plugins/tags/opt-in/)
   [privacy](https://lug.wordpress.org/plugins/tags/privacy/)
 *  [Advanced View](https://lug.wordpress.org/plugins/doi-helper/advanced/)

## Ratings

No reviews have been submitted yet.

[Your review](https://wordpress.org/support/plugin/doi-helper/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/doi-helper/reviews/)

## Contributors

 *   [ Rock Lobster Inc. ](https://profiles.wordpress.org/rocklobsterinc/)
 *   [ Takayuki Miyoshi ](https://profiles.wordpress.org/takayukister/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/doi-helper/)

## Donate

Would you like to support the advancement of this plugin?

 [ Donate to this plugin ](https://contactform7.com/donate/)